EP 0661606 B1 20000920 - Charging device, image forming apparatus having the charging device and manufacturing method for the device
Title (en)
Charging device, image forming apparatus having the charging device and manufacturing method for the device
Title (de)
Aufladevorrichtung, Bilderzeugungsgerät mit der Aufladevorrichtung und Verfahren zur Herstellung der Vorrichtung
Title (fr)
Dispositif de chargement, appareil de formation d'images contenant le dispositif de chargement et procédé de fabrication d'un tel dispositif
Publication
Application
Priority
- JP 33637093 A 19931228
- JP 14700394 A 19940607
- JP 28154394 A 19941021
- JP 29934794 A 19941202
Abstract (en)
[origin: EP0661606A2] A charging device for charging a movable object to be charged, has a charging member which contacts with the object to be charged, and a power source for applying a voltage to the charging member, wherein the power spectrum PS satisfies the following relation when the space frequency of the profile of the surface of the charging member is analyzed. In the section of 10 </= f </= 100 (cycles/mm): PS </= -2.5 x log (f/2) ( mu m<2>> The invention therefore presents a charging device capable of preventing charge unevenness due to undulations on the surface of the charging member, and charging uniformly, and generating very little ozone. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 15/02 (2006.01)
CPC (source: EP US)
G03G 15/0233 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0661606 A2 19950705; EP 0661606 A3 19960221; EP 0661606 B1 20000920; DE 69425954 D1 20001026; DE 69425954 T2 20010118; US 5548380 A 19960820; US 5776544 A 19980707
DOCDB simple family (application)
EP 94120863 A 19941228; DE 69425954 T 19941228; US 36520694 A 19941228; US 60852796 A 19960228